Marinate the mutton with all the ingredients listed under For the Marinade. Give it a hearty mix, rub the marinade over the mutton pieces. Some 10 mins or so. This step is key, the patience is well worth it.
Take a thick bottomed deep pan. Add the marinated mutton along with the marinade to the pan, sprinkle in the salt.
Cook over a low flame for some 1.5 odd hours with occasional stirring.
Pour 1/2 a cup of warm water, add the remaining 5-6 green chilies. Continue to cook till the mutton is tender.
Adjust seasonings. Remove from the flame, give it a standing time of 15-20 minutes.
Serve hot with piping hot rice and a squeeze of gondhoraj lebu.